Plamts Flashcards

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1
Q

Carbon dioxide

A

The gas in the air used by plants to make food. It is produced during respiration, by burning fossil fuels or by acids reacting with metal carbonates.

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2
Q

Oxygen

A

A gas in the air that is produced by plants used during aerobic respiration and during combustion reactions

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3
Q

Glucose

A

A simple sugar molecule

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4
Q

Photosynthesis

A

the process by which energy from sunlight, carbon dioxide and water are used by green plants to produce glucose and oxygen

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5
Q

Starch

A

A large molecule made by plants as a form of food storage

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6
Q

Iodine

A

Orange coloured liquid used to test for starch

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7
Q

Chlorophyll

A

Green pigments in plants used in photosynthesis

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8
Q

Cuticle

A

Waxy, waterproof, protective outer layer of a leaf

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9
Q

Epidermis

A

Single cell thick transparent layer in the upper surface of a leaf

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10
Q

Palisade cell

A

A long narrow plant cell packed with chloroplast and found in the upper part of the leaf

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11
Q

Spongy cell

A

A plant cell with a large surface area, large spaces around it and found in the lower part of the leaf

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12
Q

Pore

A

A very small hole

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13
Q

Stomata

A

Tiny pores on the underneath surface of a leaf through which gases can move in and out

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14
Q

Stoma

A

A tiny pore on the underneath surface of a leaf through which gases can move in and out

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15
Q

Guard cells

A

Leaf cells either side of each stoma which control its opening and closing

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16
Q

Rate

A

A measure of speed or the number of times something happened in a set amount of time

17
Q

Concentration

A

The number of particles packed in a certain volume

18
Q

Transpiration

A

Movement of water in plants as it is taken up through the roots and released from the leaves as water vapour

19
Q

Xylem cells

A

Cells that join to form a pipeline in the stem of the plant through which water and minerals travel

20
Q

Root hair cells

A

Specialised plant cells on roots

21
Q

Deficiency

A

Lack of something such as nutrient

22
Q

Fertiliser

A

Chemical put on soil to increase soil fertility and allow better growth of crop plants

23
Q

Manure

A

Waste organic material

24
Q

Chemosynthesis

A

Energy from chemicals is used to make food

25
Q

Hydrothermal vent

A

Forms in the sea floor where there is volcanic activity